Angry at a Cleveland grand jury for failing to indict a white police officer in the shooting death of Tamir Rice, a black 12-year-old, crowds gathered in New York City to protest the decision, while blocking streets and the Brooklyn Bridge.

The march was organized by an anti-police-violence group known as NYC Shut It Down (aka Grand Central Crew). It was put together shortly after the announcement that a Cleveland grand jury had decided not to indict Loehmann.

The policeman insisted that he had a “mistaken, yet reasonable belief” that Rice would shoot when the teenager pulled the replica gun from his waistband. However, both Rice’s family and activists accuse police of bias and the prosecution of manipulating the jury’s vote.